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Video of US Iraq attack 'genuine'

The editor of one of the internet's biggest sources of classified government information says there is strong evidence to suggest that video footage of an alleged US attack on Iraqi civilians is genuine.

Julian Assange, the editor of WikiLeaks.org, told Al Jazeera that the footage, released on Sunday, corroborates witness testimony.

The video is believed to show a US helicopter firing at civilians in Iraq in 2007, during an attack in which 12 civilians were killed, the website said.